[lug] adding a new disk to a system

[D. Stimits]

"Dhruva B. Reddy" wrote:
> 
> I haven't been following this thread that closely, but has anyone suggested
> using dd to copy from one raw device to another?

I've suggested that if raw disk access was used for a database, then
standard copy or even cpio won't work...dd *might* work in that case, if
the block size on both devices is the same (but might still fail if
individual inode numbers also had to remain the same...depends on the
raw access database program). I'm not sure if the original problem
though involved an exact copy of complete partitions...if so, then dd
would have some obvious advantages.

D. Stimits, stimits at idcomm.com

> 
> On Sun, Sep 02, 2001 at 12:05:05AM -0600, quoth Rob Riggs:
> > How is tar or cpio any better with links than 'cp -a'? You have the same
> > problems with hard links with tar and cpio (AFAIK) and 'cp -a' handles
> > symlinks just fine. And the average Linux system has few, if any, hard
> > linked files these days so it's generally not an issue.
> >
> > Hugh Brown wrote:
> >
> > >cp doesn't deal well with links and it is not as effecient as some of the
> > >other methods.
> > >
> > >It has failed me, which is why I opted for the tar method first.
> > >
> > >Hugh
> > >
> > >"Rob Riggs"
> > >
> > >>I've always used 'cp -a <src> <dest>'. It's short, sweet and easy to
> > >>remember. And it has never failed me.
> > >>
> >
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